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0,, H. PERKINS. v FORMING HORSBSHOE BLANKS.

No. 75,456. Patented Mar. 10. 1 868.

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CHARLES H. PERKINS, OF PROVIDENCE, RHODE ISLAND Letters Patent No. 75,456, dated March 10, 1868.

IMPROVEMENT IN FORMING HORSE-SHOE-BLANKS.

TO ALL WHOM IT MAY oononnn:

Be it known that I, CHARLES H. PERKINS, of-the city and county of Providence, in the State of Rhode Island, have invented a new and useful Improvement in the Manufacture of Blanks for Horse-Shoes; and I do hereby declare that the following specification, taken in connection with the'drawings, making a part of the same, is a full, clear, and exact description thereof.

Figure 1 represents a horse-shoe made from a blank, such as my improvement in the method of manufacture produces. Y 1 v Figure 2 exhibits a double blank as it appears after being rolled, and which, after it has divided longitudinally, will furnish blanks for two shoes like thatshown in fig. I

Figures 3, 4, and 5, are sections of such double blank on the lines at, ed, ef, respectively.

My invention is of importance, particularly in the manufacture of shoes for animals, which are made by the process of rolling as distingushed from the process of forging.

In shoes for animals made by both processes, it is important that the inner edge should be much thinner than the outer, as shown in the several views in section; the portion which is made concave or bevelled upon the'face of the shoe in contact with the hoof being so made to prevent/too greafpressure upon the tenderer portions of the animals foot, and the outer or ground face being made concave, to prevent the shoe from retaining stones and snow-balls. I

While it is entirely practicable to give this conformation to a shoe which is forged between dies after it has been bent into form, it is practically imp'ossibleto roll a blank for a singleshoe into this shape, and as the economy of. manufacturing shoes by the rolling'is much greater than by the forging process, it is very desirable to devise a means for giving to the rolled blanks the required form in these particulars.

My invention consists in rolling a single bar into the form of a double blank, or one suitable for making two shoes, whereby the tendency which each single blank of the form described, if attempted to be rolled separately, would have to slip away from the acting faces of the rollers forming the bevelled or concaved sides, is counteracted by-rolling at one operation a double blank, in which the bevelled or concaved face s pertaining to each of its parts respectively are in opposition.

' In the drawings, fig. 2 represents a double blank, which, when divided longitudinally through its centre, will be capable of forming two shoes, each of which will, when bent into form, he like that shown in fig. 1. The

' peculiar form and arrangement of the calksupon the'surfuce of the shoe represented, constitute no part of the nvention. The drawings in that particular are illnstr'ative only of one form of shoe, It will be seen that the faces 'a b, b c, d e, cf, of the respective parts of the double blank shown in sectign at figs. 3, 4, and 5,- are inclined toward each other, or toward what will be, after the blank has been divided and the bending operation has beenperformed, the inner edge of the shoe. a v

It is quite obvious to'a-ny one familiar with the art of'rolling metals that a pair of rollers can be constructed which will, without the ileastdifiiculty, make doncave along the central axis, upon both surfaces, :3. bar of metal suitable fora double blank, and also such additional functions for making creases, raising calks, or forming depressions appropriate to the desired form, which inpther respects than that to which this invention relates, it is desired to give to the shoe, can also be given to such rollers quite as well for rolling a double as a single blank. After the double blank has been rolled, it is to be divided into two parts longitudinally by any suitable shearer other cutting-apparatus, when each single blank so resulting will be ready to have the bending operation performed upon it.

I claim the improved double blank for horse-shoes herein described, as an article of manufacture.

' CHAS. H. PERKINS. Witnesses:

WM. W.- -RICKARD, I. M. Ooscnovn. 

